George hayes



G. HAYES.

METALLIC LATHING. Q

(No Model.)

Y Patented Feb. 4, 1890.

S f5 3 j WITNESSES:

INVENTDR Az/W/ 7/7 UNITED STATES PATENT OFFICE.

GEORGE HAYES, OF NEW YORK, N. Y.

METALLIC LATHING.

SPECIFICATION forming part of Letters Eatent No. 420,660, dated February 4, 1890.

Application filed October 9, 1889. Serial No. 326,454.

(No niodel.) Patented in England October 28, 1888, No. 15,235; in

France October 26,1888, No.193,756; in Belgium October 26,1888, No. 83,740; in Italy October 26,1888, No. 24,317, and

in Canada January 28,1889,No.30,611.

To all whom it may concern.-

Be it known that I, GEORGE HAYES, a citizen of the United States, residing in the city, county, and State of New York, have invented a new and useful Metallic Lathing, (for which I have obtained patents in Great Britain October 23, 1888, No. 15,235; France, October 26, 1888, No. 193,756; Belgium, October 26,1888, No. 83,740; Italy, October 26, 1888, No. 24,317, and Canada, January 23, 1889, No. 30,611,) of which the following is a specification.

My invention consists of asheet-nietal lathing aperture at intervals throughout, each aperture formed by cutting a Y-shaped incision and turning outwardly and backwardly the pointed edge metal until the opening assumes the shape of a triangle with the edge metal projecting beyond the plane of the sheet at the verge of the opening as hooks, tongues, or barbs to grasp plaster, and in conjunction with the apertures (into which the plaster keys securely hold the plaster to the lathing, all as hereinafter more fully explained, reference beinghad to the accompanying drawings, in which v Figure 1 represents a face view of a piece of the lathing', showing the tongued apertures arranged in straight lines lengthwise and crosswise the sheet. Fig. 2 is a face view of a piece of the lathing, showing the tongued apertures arranged in diagonal lines across the sheet. Fig. 3 is a face view of a piece of lathing, showing the tongued apertures elongated and arranged in straight lines both ways, the points of the triangles reversed in alternate lines. Fig. 4 is a face view of a piece of lathing, showing tongued apertures similar to those of Fig. 3, but arranged in diagonal lines across the sheet. Fig. 5 shows in perspective a piece of the lathing with one tongued aperture. Figs. 6 and 7 are sectional views showing the manner of bending outwardly and backwardly the tongues from the apertures.

On the drawings, A indicates the sheet or piece of lathing.

B indicates the apertures, and C the tongues, hooks, or barbs.

The dotted lines in the apertures at the upper left-hand corners of Figs. 1 and 3 show the form of the incision. The out is made and. the pointed edge metal turned outward by dies which enter to sufllcient degree to make the apertures of proper dimensions and give the tongues a backward bend or curl either like Figs. 6 or '7, or approxiining thereto. The openings have, therefore, rounded interior faces, which-prevent plaster cutting away aud constitute the opening a dovetail mold, into which the plaster sets, keying itself to the lathing. Another dovetail mold is formed between three opposite tongues, one from each of three openings, as shown at it), Fig. 2, with the face of the sheet at its aek.

What I claim as new, by Letters Patent of the United States, is

1. A sheet-metal lath having apertures at intervals throughout, each aperture of triangular shape and having at each of its three sides a raised or projecting tongue, hook, or barb of the sheet metal, essentially as shown and described.

2. A sheet-metal lath having at intervals throughout triangular apertures formed by and desire to secure cutting a Y-shaped incision through the metal and turning outwardly the pointed edge metal with a bend or curl backward from the opening, so-that they the sheet as tongues, hooks, or barbs to grasp plaster applied thereto, essentially as herein set forth.

4E0. HAYES.

Witnesses:

JAMES R. MCAFEE, ARTHUR HAYES.

project beyond the plane of Y 

